AMS radiocarbon dating of ancient bone using ultrafiltration
AMS radiocarbon dating of ancient bone using ultrafiltration
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DOI：
10.1017/s0033822200066388
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发表时间：
2006-01-01
期刊：
影响因子：
8.3
通讯作者：
Ramsey, C. Bronk
中科院分区：
文献类型：
--
作者：
Higham, T. F. G.;Jacobi, R. M.;Ramsey, C. Bronk
自2000年以来，牛津放射性碳加速器单位（ORAU）使用超滤协议进一步纯化考古骨中的明胶。在本文中，该方法进行了描述，它表明，在许多情况下，超滤成功地去除低分子量污染物，不太严格的方法可能不会。这些污染物有时可能具有不同的放射性碳年龄，除非被去除，否则可能产生错误的测定，特别是当一个人正在测定超过2至3个C-14半衰期的骨骼时，污染物是现代的。对不列颠群岛和欧洲旧石器时代晚期、中期和早期的骨骼进行重定的结果表明，我们可能需要重新审视这些时期的传统年表。
The Oxford Radiocarbon Accelerator Unit (ORAU) has used an ultrafiltration protocol to further purify gelatin from archaeological bone since 2000. In this paper, the methodology is described, and it is shown that, in many instances, ultrafiltration successfully removes low molecular weight contaminants that less rigorous methods may not. These contaminants can sometimes be of a different radiocarbon age and, unless removed, may produce erroneous determinations, particularly when one is dating bones greater than 2 to 3 half-lives of C-14 and the contaminants are of modern age. Results of the redating of bone of Late Middle and Early Upper Paleolithic age from the British Isles and Europe suggest that we may need to look again at the traditional chronology for these periods.